PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-15:13:10
G02     232.7          72.3               10.7 +/-    1.00      11.1 +/-    1.00  0.030 / 0.070
G05     175.9          11.0               -0.9 +/-   31.47      -2.5 +/-   31.47  0.030 / 0.060
G06     41.8           63.0                9.0 +/-    0.55       9.9 +/-    0.55  0.050 / 0.110
G12     321.4          48.4                9.6 +/-    0.84      12.3 +/-    0.84  0.070 / 0.100
G17     70.1           22.0                7.2 +/-    1.11      15.2 +/-    1.11  0.090 / 0.150
G19     55.9           39.0                8.2 +/-    0.87      12.2 +/-    0.87  0.090 / 0.170
G24     250.7          36.7               12.0 +/-    0.72      18.5 +/-    0.72  0.180 / 0.300
G25     316.3          12.3                6.9 +/-   14.17      18.2 +/-   14.17  0.180 / 0.310